Raw material ball mill, also known as raw material mill, is a commonly used grinding equipment in mineral processing process. Raw material mill is mainly divided into dry raw material mill, wet raw material mill, cement raw material mill and so on. It is often used for grinding materials in mineral processing production line. The raw material mill has the integrated structure of cylinder cover and hollow shaft, and the whole mill has a special streamline style, which reduces the resistance of air flow, increases the available volume, is easy to discharge, and increases the output of finished products. Raw material ball mill is generally used for open-flow grinding or multi-cycle flow grinding composed of raw material mill itself and powder separator, and it is also commonly used in the processing of materials in some industrial and mining enterprises.